Apparatus for casting metal.



J. A. CARL.

APPARATUS FOR CASTING METAL.

APPLICATION FILED MAR. 6. m5.

1,1 5 1,660. Patented Aug. 31, 1915.

3 SHEETS-SHEET I.

III/1' i 1 j m f g I t i vwewtoz coLummA PLANOGRAPH co. WASHINGTON. D. c.

J. A. CARL.

APPARATUS FOR CASTING METAL.

APPLICATION FILED MAR. 6. 1915.

1,151,660.. Patented Aug. 31, 1915.

3 SHEETSSHEET 2.

wi bnwoao aktommq COLUMBIA PLANUGRAPH 10., WASHINGTON, D. c.

J. A. CARL.

APPARATUS FOR CASTING METAL.

APPLICATION FILED MAR. 6. m5.

1,151,669. Patented Aug. 31, 1915.

3 SHEETS-SHEET 3.

wi/bmuooeo COLUMBIA PLANDGRAPH co., WASHINGTON, D. c.

'1 FFTCE.

JOHN A. CARL, OF POTTS'IOWN, PENNSYLVANIA.

APPARATUS FOR CASTING METAL.

To all whom it may concern Be it known that I, JOHN A. CARL, a citizen of the United States, residing at Pottstown, in the county of Montgomery and sitate of Pennsylvania, have invented certain new and useful Improvements in Apparatus for Casting Metal, of which the fol lowing is a specification.

My invention relates to improvements in apparatus for casting metal, the object of the invention being to provide an improved mechanically operated mechanism for jarring the molds so as to dislodge the metal and compel it to fall out of the molds.

Heretofore, in the manufacture of pig iron, it has been a common practice to station men at the outlet end of the chain of molds to impart blows to the several molds to dislodge the pigs and compel them to fall from the molds. This is a very expensive procedure, as it requires at least one man for each set of molds, and furthermore, particularly in hot weather, it is difiicult to keep men at such a job because of the fact that the molds are coated with lime, and the workmen perspiring freely by reason of the hot metal and the warm temperature of the atmosphere become more or less covered with the lime, which eats into the skin and causes him keen torment.

It is the purpose of my improved apparatus to dispense altogether with the necessity for a workman to dislodge the pigs, but instead, perform this work automatically, insuring a uniform blow to each mold and regulating the blow so as to insure the dislodgment of the pig.

Vith these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings: Figure 1 is a fragmentary view in side elevation illustrating my improved apparatus in connection with an ordinary type of casting machine. Fig. 2 is a view in longitudinal section through the plunger cylinder. Fig. 3 is a view in side elevation showing the plunger in engagement with one of the molds. Fig.

4 is a view in section on the line 4'4 of Fig. 3. Fig. 5 is a face view of one of the molds showing the position of the plunger in striking the same. Fig. 6 is a view in elevation Specification of Letters Patent.

Application filed March 6, 1915.

Patented Aug. 31, 1915.

Serial No. 12,517.

of the opposite side of the apparatus shown in Fig; 3. Fig. 7 is a view in horizontal section on the line 7-7 of Fig. 6, and Fig. 8 is a View in transverse section on an enlarged scale on the line 88 of Fig. 6.

1 represents a frame, and 41 an endless chain supporting molds 2 passing around sprocket wheels 3 at the discharge end of the mold machine.

The sprocket wheels 3 are secured to a shaft 4, having a pinion 5 thereon, receiving motion from any desired source, and on this shaft 4, a relatively large gear wheel 6 is secured.

7 represents a transverse conveyer onto which pigs discharged from the molds fall, and are conveyed to any suitable point of discharge.

8 represents a supporting frame having an upright plate 9 thereon, the latter provided with a slot 10 through which a finger 11 on my improved plunger 12 projects.

The plunger 12 constitutes a relatively heavy bar which extends through a cylinder 15, and is provided with a piston 13 in the cylinder against which a coiled spring 14, housed in the cylinder, exerts a constant pressure.

' The cylinder 15 is provided with removable heads 16, so that the parts can be readily assembled and taken apart as desired. The cylinder is supported on a plurality of integral feet 17, the latter resting upon a platform 18 secured to plate 9.

The platform 18 is provided with longitudinal slots 19, through which bolts 20 project. The bolts 20 are also passed through openings in the feet 17 and secured by nuts 21, so that the cylinder can be moved longi- I tudinally of the platform.

An integral block 22 on cylinder 15, eX- tends through a longitudinal slot 23 in platform 18, and is provided below the platform with a screw-threaded opening 24 to receive an adjusting screw 25. I This screw 25 is relatively long, is supported in a bearing 26 at one end of the plate 9, and is provided with a crank handle 27, so that it can be readily turned to adjust the position of the casing, and give the necessary blow to the mold.

A bar 28 is supported to slide longitudinally against one face of plate 9, and is supported by bearings 29 securely bolted to the plate. One end of this bar 28 is connected in any approvedmanner.

A pinion 34 is secured to the shaft 32 andmeshes with the relatively large gear wheel 6, so that rotary motion is imparted to the pinion, and a reciprocating motion to the bar 28. The bar 28 is provided in its upper edge with a notch 35 into which the finger 11 on plunger 12 projects. The lower edge of tie slot 10 is at an incline as shown at 36. The lower end of the incline is in the'direction of'the molds. The finger 11 falls into the notch 13 by'gravity, and when the bar 28 is moved rearwardly by means of the link 30, crank shaft 32 and pinion 34, the finger 11 will be caused to ride up the inclined edge 36 of slot 10 and move out of the notch 35, so that when the plunger reaches its rearward position, the finger will be moved out of the notch 35, and-the spring 15 will drive the plunger forwardly, giving the necessary blow to the mold.

Fig". 5 illustrates a face view of one mold, showing the plunger 12 as it strikes the end of the mold and jars the mold sufficiently to dislodge the pig. The parts are so arranged that the plunger will impart a blow to each succeeding mold, and the operation will be entirely automatic.

When the operation of the plunger is not desired, the finger 11 can be held in an elevated position by means of a lever 37, pivotally connected between its ends to plato 9, and having a rod 38 secured thereto with an eye 39 at oneend to engage over a hook 40.

When the lever is in a position to elevate the finger 11, as shown in dotted lines in Fig. 3, itwill permit the operation of the bar 28 without operating the plunger.

Above the molds 2, before they reach the discharge end of the machine, I provide a sprinkling pipe 42. which discharges water onto the metal in the molds. This spray or sprinkling of water cools and contracts the metal, so that the pigs'are readily dislodged from the molds by the plunger. The water may, of course, be supplied to the sprinkler I have shown a supply pipe 43 with a valve 44 therein, the pipe inclining from one end to the other, so that it will effectually drain and prevent freezing.

Various slight changes might be made in the general form and. arrangement of parts described without departing from my invention, and hence I do not limit myself to the precise details set forth, but consider myself at liberty to make such changes'and' alterations as fairly fall within the spirit and scope of the appended claims.

' Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is: V

1 The combination witha machinehaving a series of molds, of a, spring-pressed plunger adaptedto engageeach mold, a re ciprocating bar operated by the machine and constructed to'move the plunger against the tension of its spring, and means for releasing the plunger from the bar to allow the plunger to spring forward, substantially as described; 7

2-. The combination with amachine having a series of molds, of a spring-pressed plunger adapted to engage the molds, a reciprocating bar havinga notch therein, a crank arm on the plunger located'in the notchduring one movement of the plunger, and means for moving the crank arm out of the notch when the bar reaches a pre-determined position, substantially as described.

3. The combination with a support, of a cylinder adjustable on the support, a mold engaging plunger movable through the cylinder, a spring in the cylinder-engaging the plunger, and a reciprocating bar for moving the plunger against the tension of the spring, substantially as described.

The combination with a support, of a cylinder adjustable on the support, a mold engaging: plunger movable through the cylinder, a spring in the cylinder engaging the plunger, a reciprocating bar constructed to move the plunger against the tension of the spring, and means for releasing the plunger from the reciprocating bar, whereby the plunger is forced forwardly by the spring against the mold, substantiallv asdescribed.

5. The combination with a support, a cylinder movably mounted on the support, a plunger extending through the cylinder, a piston on the plun er in the cylinder, a springin the cylinder bearing against the piston, a reciprocating member engaging the plunger and constructed to move. the same against the tension of the spring, and means for releasing the plunger from said member, whereby the spring moves the plunger in an opposite direction to strike a mold, substantially asdescribed;

6. The combination with a supporting plate having a' platform secured? thereto, said plate having a slot therein with a lower inclined wall, a cylinder mounted on the platform, a plunger extending through the cylinder and having a finger at one end projecting through the slot in the plate, a spring in the cylinder exerting pressure on the plunger, a reciprocating bar supported on the plate and. having a notch therein adapted to ,receive the finger, andmeans for moving the bar in a direction to force the finger up the inclined. wall of the slot and out of the notch in the bar, whereby the plunger is permitted a forward movement by its spring, substantially as described.

7. The combination with a. supporting plate having a platform: secured thereto, said plate having a slot therein with alower inclined wall, a cylinder mounted on the platform, a plunger extending through the cylinder and having a linger at one end projecting through the slot in the plate, a spring in the cylinder exerting pressure on the plunger, a reciprocating bar supported on the plate and having a notch therein adapted to receive the finger, means for moving the bar in a direction to force the finger up the inclined wall of the slot and out of the notch in the bar, whereby the plunger is permitted a forward movement by its spring, and means for holding the finger in an elevated position out of the notch in the bar, substantially as described.

8. The combination with a molding machine having a series of movable molds, of a support adjacent the discharge end of the molding machine, a spring-pressed plunger on the support adapted to strike each mold, a relatively large gear wheel constructed to turn with the molding machine, a pinion meshing with said gear wheel, a reciprocating bar controlling the movement of the plunger, a crank shaft to which said pinion is secured, and a link connecting the crank shaft and bar, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN A. CARL. Vvitnesses:

CLINTON L. MAUGER, Monms Gnorr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0; 

